Is It Normal for a Car to Make Squeaking Sounds When Turning the Steering Wheel While Stationary?

Why does the car idle speed fluctuate when the air conditioner is on?

It is generally normal for a car's idle speed to fluctuate when the air conditioner is on, but the frequency should also be considered—observe how often the fluctuation occurs. If the interval is one or two seconds, it indicates a fault in the air conditioning system. Replacing the oil seal when necessary can effectively improve this phenomenon. Additional relevant information is as follows: 1. The idle speed of the engine is called the engine idle speed, which can be adjusted by modifying the throttle opening. 2. Idling is an operating condition of the car, where the engine runs in neutral gear. 3. When the accelerator pedal is released while the engine is running, the engine enters idle mode. The idle speed should not fluctuate excessively, as it can cause wear on the engine. 4. A well-performing engine typically idles between 550–800 RPM. If the car's idle speed is problematic, it may lead to unusual engine noises.

11

1

Share

What is the fuel consumption of the Tiguan 2.0T 4WD?

The fuel consumption of the Tiguan 2.0T 4WD model is 9.2L/100KM. Taking the Tiguan L as an example, the following are the specific details of the Tiguan L: Power: The Tiguan L is equipped with a 2.0-liter engine, with a maximum power of 137 kW and a peak torque of 320 Nm. The transmission system is matched with a 7-speed wet dual-clutch gearbox. Exterior: The front grille of the Tiguan L features a large amount of chrome decoration. The Panorama Comfort version adds an openable panoramic sunroof, while the Intelligent Luxury version enhances the smart configuration. Interior: It features a new dual LCD screen design, with the instrument panel upgraded to a 10.2-inch digital full LCD instrument panel.

9

1

Share

What is the difference between Beijing A and Beijing B motorcycle license plates?

The differences between Beijing A and Beijing B motorcycle license plates are as follows: Different driving restrictions: Motorcycles with Beijing A license plates can normally operate in urban areas of Beijing except for Chang'an Street, while motorcycles with Beijing B license plates can only be used in suburban areas and are not allowed to enter the urban area at any time. Different values: Beijing A license plates retain their value well, whereas Beijing B license plates are generally priced much lower. Different road access: Motorcycles with Beijing A license plates can access the 2nd, 3rd, and 4th Ring Roads, while those with Beijing B license plates cannot. Additional information: In 1985, Beijing stopped issuing new Beijing A motorcycle license plates. At that time, approximately 25,000 Beijing A plates had been issued. Since then, citizens who wish to purchase a motorcycle must find a used or scrapped vehicle with a Beijing A plate and transfer it to their name to legally ride on the road.

11

2

Share

Are the Cylinder Block and Cylinder Head the Engine?

The cylinder block and cylinder head can only be considered as parts of the engine, not the entire engine itself. A car's engine is composed of components such as the valve cover, cylinder head, cylinder block, oil pan, crankshaft, piston, connecting rod, and flywheel. The parts listed above are just a small portion of the engine's components. A complete engine should also include sensors and the ECU, which serves as the brain of the engine. Below is an introduction to the ECU: 1. Function of the ECU: The ECU can collect data through various sensors, process it, and then control the engine's operation via control mechanisms. Without the ECU and sensors, the engine cannot function properly. 2. Principle of the ECU: The ECU operates by using sensors installed in different locations to monitor the engine's working conditions, including parameters such as engine speed, crankshaft position, exhaust temperature, and exhaust oxygen content. These signals are sent to a dedicated microprocessor, which processes them and issues control signals to adjust the engine's ignition timing and fuel supply in a timely manner, achieving the desired optimal performance.

2

Share

How to Solve the Problem of Car Not Starting in Cold Weather?

Solutions are as follows: 1. When the battery is dead, you can ask someone to help jump-start the vehicle. 2. If the throttle is frozen, you can use a hairdryer to melt the ice on the throttle. 3. When the engine temperature is too low, you can turn the vehicle to the power-on position, and then a "heating wire" symbol will appear on the dashboard. Wait until the heating indicator light goes off, and the vehicle can start normally. How to jump-start a car: 1. Car jump-starting requires a rescue vehicle. Park the two cars facing each other and prepare two charging cables. 2. Open the hood and connect the positive and negative electrodes of the two car batteries with the charging cables. 3. Let the rescue vehicle's engine idle and try to start the dead car. If the battery is dead, the car should start quickly, and then the generator will charge the battery.

4

2

Share

Why is it not recommended to repair a dented side skirt?

The reasons why it is not recommended to repair a dented side skirt are: the cost of repairing the side skirt is relatively high, and since it is located below the door, whether it is repaired or not does not make much of a difference. The functions of a car's side skirt are as follows: 1. It can reduce the airflow entering the underside of the car from both sides of the body; 2. At high speeds, it acts like suction, pulling the chassis closer to the ground, thereby increasing stability; 3. When driving at high speeds, if the direction remains stable, the computer will save this setting. Relevant information about car maintenance is as follows: 1. Introduction: Car maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. 2. Maintenance scope: Modern car maintenance mainly includes the engine system (engine), transmission system, air conditioning system, cooling system, fuel system, power steering system, and other maintenance areas.

13

1

Share

Is It Normal for a Car to Make Squeaking Sounds When Turning the Steering Wheel While Stationary?

Why does the car idle speed fluctuate when the air conditioner is on?

What is the fuel consumption of the Tiguan 2.0T 4WD?

What is the difference between Beijing A and Beijing B motorcycle license plates?

Are the Cylinder Block and Cylinder Head the Engine?

How to Solve the Problem of Car Not Starting in Cold Weather?

Why is it not recommended to repair a dented side skirt?

Should I Choose Automatic or Manual Transmission for the Driver's License Test?

Which vehicles can an A1 driver's license drive?

On which year will the penalty points be counted if deducted on the last day of the driver's license?

What Are the Symptoms of a Clogged Fuel Injector?